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Try making the preload stiffer and it will take the bounce out. When I overload my bike it feels like a mess but when I adjust the suspension accordingly it makes a huge difference.
There should be one or two dots showing on the side of the shocks based on your weight. Is that how you have it set?
My 2017 Iron, same rear shocks as yours I believe, is not bouncy and I'm 145 lbs.
Ah.... I think I should have chosen a different word than "bouncy". When my bike hits a bump in the road, it does not oscillate, it's just transmitting too much of the hit to me. I could try messing with it some more, but when I first began test-riding Sportys, I tried out an Iron 883 with the shock preload set at about the midpoint and thought it was too jarring. So, when we got back to the dealership we backed the preload off pretty much all the way and that improved the ride. Now, of course, after having bought my own and done about 350 miles so far, it still feels like it should be less jarring when I hit some irregularity in the road. When it comes down to it, I don't see any way to avoid going to a slightly longer shock in the back. I read somewhere that the total travel on the back of my bike is around an inch and a half. It's not all that hard to find a bump in the road that high, and since I have yet to feel the shock bottom out that tells me that, over a bump that size, the shock is moving less than that inch and a half and passing the remainder on to my butt/back.
So, here's a few followup questions:
What is the length of the stock shock? I assume I have to remove (or at least unweight) the shock to measure this accurately, so I was hoping someone already knows it from experience.
How much length can I add before I either (1) start altering the way the bike handles due to other angles being altered and (2) need a longer kickstand? My gut tells me adding an inch should keep me on the right side of these, and getting a one-inch-longer, higher quality shock like a Legend or Ohlins (or, even a Progressive) would notably improve the ride.
I realize simply changing to a different, higher-quality shock design might also improve handling for other reasons even if it alters angles on the bike due to lighting the back end. To that end, I'm willing to consider a more comprehensive approach and make changes on both ends of the bike, but I'm even more confused about what I can do up front just because I haven't looked into it as much yet. But if someone out there did a front/ear upgrade to a Forty Eight that they really liked, I'd like to hear about it.
I just bought an '18 Forty Eight Special a couple weeks ago (first bike) and after about 300 miles I can already tell that it could use a better suspension. That said, here a a few important details up front:
I bought it under the "Freedom to Ride" Sporty promotion, so it's more likely that not at this point that I will trade up within the year, probably to something that can carry more than just me (I already use a backpack to go to and from work on it, which works but is not ideal).
My inseam is around 32" and I weight about 165 lbs. I can easily flat-foot the bike at its current height.
I do not plan to ride this bike two-up. Already switched saddles once and have no plans to do it again. I'll save that for the next bike.
I have so far only ridden the bike around town, not more than 30 minutes at a time. I was initially concerned that the short-travel, mediocre stock shocks would be unkind to my aging, injured back but that has not been the case yet. But I do find the bike "bouncy"; it just doesn't feel very planted. I have had a few instances of street riding where bumps in the pavement lifted me ever so slightly out of the saddle. This would certainly be unsettling at higher speeds. I don't actually know for certain what the stock shock length is and I have not yet check to see how much the stock setup sags under my static weight. So far, I have looked at Progressive, Legend, and Ohlins. Mainly focused on the rear end but want to hear about any front changes I should consider (the rear end is the part that seems to get my attention).
Thoughts, experiences, recommendations?
Here are some very informative Reports on Suspension-
These are both recommended reading before spending any money or time on suspension changes.
On Sportys especially, we have noticed that the rear stock shocks feel much better AFTER the front suspension is improved.
This is because when hitting a bump with the stock front suspension, it compresses the forks (unloading the rear shocks). Since the forks rebound too slowly, the rear shocks are still unloaded when the rear wheel hits the same bump. This makes the rear shocks feel much stiffer than they would if the front suspension was functioning better.
changes the minute you change the length. you are altering the how much weight is put on the frontend
maybe play with the stock settings. the emulsion shocks are not junk. other brands sel them for 500-600. you can go with some fully adjustables like the ohlins blackline but, play with the stockers before whipping out that wallet
Get a new seat. Maybe one with some shock absorption and spine support. Saddlegel from saddlemen is nice. They cost less than shocks and don't reqiuer much time for installation. Just a thought.
Get a new seat. Maybe one with some shock absorption and spine support. Saddlegel from saddlemen is nice. They cost less than shocks and don't reqiuer much time for installation. Just a thought.
I actually did that already, although it was to move me forward more than give me more cushion. But it's worth looking into. I've heard a lot of good about Saddlemen. The one good thing I should add is that I initially worried that the ride on this bike might trigger my back pain once I actually started riding it (beyond the test ride). So far, that hasn't happened.
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